Core/Transports: Fixed double deleting IoC transports
Db/Update: Rockjaw Backbreaker script spam

By @untaught fixes #11112
Game/Battlefield:
- Remove double definition of one NPC
- Use definition instead a "magic number"
Merge pull request #11120 from AliveShiro/battlefield_cosmetic

Game/Battlefield: Cosemtic changes
Core/Chat Commands: Allow to add overlapping teles .

Allow to add overlapping teles like "abc" even if "abcde" already exists. This wasn't possible and a "Teleport already exists" error was thrown instead.
Merge branch 'master' of https://github.com/TrinityCore/TrinityCore.git
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